DemoFor public education only. These blocks are built by PisoScan from published PhilGEPS records to show how a budget ledger like CADENA would work. No government agency created or signed them, and this is not an official ledger. How it works
Transaction details
APITransaction action
PROVINCE OF BATAAN Award a ₱2.0M contract to E.R. VENZON CONSTRUCTIONProvinces
Transaction hash:
f49d9d83bc5faeb262ddad45c38b14260ac1ff1a52ed6551a5c4d0c7a700feec
Status:
Included and unchanged
Block:
#2,979 3,034 blocks after it
Position in block:
Transaction 241 of 253
Award day:
Feb 2, 2017 (9 yrs 9 mo ago)
From:
Value:
₱1,993,995.37
Project:
Construction
Full record:
Accountability
Bill Sec. 3 and 19Responsible agency:
Accountable officer:
Not stated in the source. PhilGEPS does not publish who certified the award.
Certification:
Not certified No agency signed this record. Under CADENA the accountable officer would sign it with their own key.
Demo signature:
Block #2,979 signature valid Demo key, proves nothing about the governmentPublic key
Linked records: from budget to payment
Bill Sec. 5- 1. AppropriationGAA line item · Sec. 5(b)The award does not say which budget line pays for it.Not published
- 2. Allotment releaseSARO / allotment · Sec. 5(c)(iii)Not published per project. DBM releases SAROs, but not linked to individual contracts.Not published
- 3. Cash allocationNotice of Cash Allocation · Sec. 5(c)(iv)Not published per project.Not published
- 4. Contract awardNotice of Award (PhilGEPS) · Sec. 5(d)PROVINCE OF BATAAN awarded it to E.R. VENZON CONSTRUCTION on 2017-02-02.Found
- 5. Contract & progressContract / progress report (DPWH) · Sec. 5(d)No matching DPWH contract record (only DPWH contracts are listed with progress).Not published
- 6. PaymentDisbursement voucher · Sec. 5(c)(viii)Not published. No public source shows how much of this contract has been paid.Not published
- 7. CompletionCertificate of completion · Sec. 5(d)No completion certificate published.Not published
- 8. AuditCOA annual audit report · Sec. 5(e)(iii)COA's CY2024 audit of Bataan gave a "qualified" opinion on its financial statements (not specific to this contract).Partly
1 of 8 documents found, 1 partly. Under CADENA every step would be published within 7 working days and linked to this record.
Tamper test: try changing this record
DemoEdit the amount as if someone quietly changed the record. Your browser re-hashes it and walks up the chain. Nothing is saved.
- 1. Record fingerprint changedstored f49d9d83bc…00feecnow …
- 2. Block Merkle root changedstored 63a205cd1e…8b8267now …
- 3. Block #2979 hash changedstored 069e27df2a…d97637now …
Chain intact. The record matches its fingerprint, so the block and every block after it still line up.
Merkle proof (8 steps)
How this one record is tied to the block's Merkle root, without needing the other 252 records. Each step hashes the current value together with the sibling shown.
- leaf f49d9d83bc5faeb262ddad45c38b14260ac1ff1a52ed6551a5c4d0c7a700feec
- 01 L f493099bd3938bcd35a3b1ad2a4433ba29927f16c3633873d72c2d76a76ca2ed
- 02 R 99f070393701ba44606d710d4f1a9fc9d6e8242b6dc880b76c2f7c823f4098d8
- 03 R 281acb511ac51d2f789f1059ae4a08ac716c35fe8815c373c461e3f4a8975538
- 04 R f6be7daa0e582c2634b2778e3c897c8f888031a8908dd6272f748928ebf7b064
- 05 L a174d4477158b87e83680078419f7e31c0e3bd562574c3ba9056ac8e53585906
- 06 L 009f3c851ef2791c091faf73f2bd0447fdac8f914c4c834f6285409e3c856be0
- 07 L 29ce342ad70193876a5db43fea8ac7ab5ed384a6d3684480aa9820a0c5db91b6
- 08 L d0abe61e72c6bd28b8f3d6d31681457dda40367da11b77fa3f20e75936b86590
- root 63a205cd1e67464b7cbda784e75bba4a04655ee860df171448f4aa56608b8267